Haldex’s EMS system is a total vehicle management systemdesigned to manage vehicle energy and transform it simultane-ously to any function within a vehicle.inertia energy to fluid energy (available torque) duringbraking and implement cycles and simultaneously uses itfor other functions or stores it within a central accumulator.The vehicle hydraulic circuits are mechanically coupled, butoperate completely independently. The open-loop hydrau-lics and closed-loop electronics allow precise conversion ofenergy, without waste, Haldex said.In the year since the debut at Bauma, Pizzo saidHaldex has completed its own lab testing in Rockford andhas been able to determine — based on a very specificroundtrip on-road duty cycle — that fuel savings could begreater than 45%.One of the primary advantages Haldex has seen forEMS is lower fuel consumption. While it places qualifiers allover the place, as performance is dependent on individualvehicle duty cycles, fuel savings approaching as much as50% was seen as possible.Now, with its own testing and outside modeling, thatnumber is coming into clearer focus.Second, modeling done by a major off-highway equip-ment manufacturer projected fuel savings of more than35%, based on the specific duty cycle of the single type ofmachine it was tested on, Pizzo said.Further, another major OEM is conducting ongoingmodeling of the EMS system with various-sized rotatinggroups. These rotating groups are capable of handlingmachines from zero to 100 hp and the larger size up to500 hp. The technology lends itself to scaleability fromsmaller pieces of equipment up to some of the largestpieces of mobile equipment in the market.Pizzo said Haldex has also reviewed additional ways topackage the EMS for other types of on-highway, materialhandling and off-highway vehicle platforms. dpTo Request More InformationOn This Company Go ToDIRECTLINKat www.dieselprogress.comMOBILE HYDRAULICS

Haldex Variable Flow
Oil and Water Engine
Pumps

aldex Concentric will exhibit a pair variable flowpumps at IFPE 2011, an oil and water pump,The Haldex Concentric variable flow oil pump (VFP) isan annulus and rotor design that provides infinitely variablelubrication for the new generation of engines, reducing fuelconsumption by as much as 4%, the company said.The VFP design uses two rotor sets to align flow todemand, reducing power requirement and fuel consumption.The driving rotor operates in the normal manner while theposition and flow of the second, eccentric rotor is controlledeither mechanically or electronically.Haldex said both European and U.S. OEMs are workingwith Haldex Concentric on variable flow pumps for bothdiesel and petrol engines, off-highway, truck and passen-ger car applications.Combined with a variable flow water pump, the pumps canreduce parasitic losses from diesel engines by as much as5%, depending on the vehicle’s drive cycle.Also being exhibited at IFPE is the Haldex Concentric vari-able flow coolant pump, intended primarily for medium- andheavy-duty commercial vehicles, which like the oil pump,allows infinite control according to demand. The variableflow coolant pump increases the rate of engine warmup tooptimum operating temperatures, further improving fuel effi-ciency, Haldex said, as much as 2% or 5% when combinedwith a Haldex Concentric variable oil pump.Haldex said that by speeding engine warmup and maintain-ing optimum operating temperatures, a variable coolant pumpcan significantly reduce diesel particulate and nitrogen oxideas well as carbon monoxide and hydrocarbons emissions.The company also said variable flow pumps reduce hydraulicand mechanical noise, enhancing the engine NVH profile. dpA pair of variable flow pumps,an oil and water pump, are beingshown by Haldex Hydraulicsat IFPE. Both pumps aredesigned to help dieselengine manufacturersreduce fuel consumptionand exhaust emissions.